20148148140 has 48 divisors (see below), whose sum is σ = 56426388480. Its totient is φ = 5371737280.

The previous prime is 20148148109. The next prime is 20148148147. The reversal of 20148148140 is 4184184102.

It is not an unprimeable number, because it can be changed into a prime (20148148147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284935 + ... + 348545.

It is an arithmetic number, because the mean of its divisors is an integer number (1175549760).

Almost surely, 2^20148148140 is an apocalyptic number.

20148148140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20148148140 is an abundant number, since it is smaller than the sum of its proper divisors (36278240340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20148148140 is a wasteful number, since it uses less digits than its factorization.

20148148140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68902 (or 68900 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The spelling of 20148148140 in words is "twenty billion, one hundred forty-eight million, one hundred forty-eight thousand, one hundred forty".